663241320 has 96 divisors (see below), whose sum is σ = 2463477120. Its totient is φ = 151597440.

The previous prime is 663241307. The next prime is 663241351. The reversal of 663241320 is 23142366.

663241320 is a `hidden beast` number, since 6 + 632 + 4 + 1 + 3 + 20 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129076 + ... + 134115.

It is an arithmetic number, because the mean of its divisors is an integer number (25661220).

Almost surely, 2^663241320 is an apocalyptic number.

663241320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

663241320 is an abundant number, since it is smaller than the sum of its proper divisors (1800235800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663241320 is a wasteful number, since it uses less digits than its factorization.

663241320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263215 (or 263208 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 663241320 is about 25753.4719989364. The cubic root of 663241320 is about 872.0817370005.

Adding to 663241320 its reverse (23142366), we get a palindrome (686383686).

The spelling of 663241320 in words is "six hundred sixty-three million, two hundred forty-one thousand, three hundred twenty".